Four wheel drive toy vehicle

Details Four wheel drive toy vehicle Four wheel drive toy vehicle

1982-05-17

1984-04-24

Yu, Mickey

A63H 1700

Patent

active

044439687

ABSTRACT:
A miniature self-powered four wheel drive vehicle is disclosed which will climb grades of about 50.degree.. The vehicle is powered by a small electric motor positioned over the front wheel axle and having its center of mass in front of the axle, and a AA battery located behind and perpendicular to the motor. A propeller shaft extends the length of the vehicle and has a crown gear which engages a pinion on the motor drive shaft and two worm gears each of which engages a spur gear on the front and rear axles. Traction and climbing characteristics are enhanced by overscale tires having highly pronounced treads. An optional 1.5 light bulb and light distributor simulates headlights.

REFERENCES:
patent: 2739541 (1956-03-01), Varney
patent: 3014433 (1961-12-01), Durand
patent: 3114217 (1963-12-01), Rexford
patent: 3120719 (1964-02-01), Simonds
patent: 3501863 (1970-03-01), Matsushiro
patent: 3628284 (1971-12-01), Soulakis
patent: 3810515 (1974-05-01), Ingro
patent: 3849931 (1974-11-01), Gulley, Jr.
patent: 4306375 (1981-12-01), Goldfarb

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